#1D599E#1D599E

#1D599E is a mid, vivid cyan. Relative luminance 0.099; OKLCH L 46.4% C 0.127 H 254.7°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#1D599E
RGB	rgb(29, 89, 158)
HSL	hsl(212, 69%, 37%)
HSV	hsv(212, 82%, 62%)
CMYK	cmyk(81.6%, 43.7%, 0%, 38%)
CIE-LAB	lab(37.61, 6.89, -42.86)
CIE-LCH	lch(37.61, 43.41, 279.13°)
OKLab	oklab(46.38% -0.0336 -0.1228)
OKLCH	oklch(46.38% 0.127 254.7)
XYZ	xyz(10.2483, 9.8733, 33.7067)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D599E #9E621D

analogous

#1D9A9E #1D599E #221D9E

triadic

#1D599E #9E1D59 #599E1D

tetradic

#1D599E #9E1D9A #9E621D #1D9E22

square

#1D599E #9E1D9A #9E621D #1D9E22

split-complementary

#1D599E #9E221D #9A9E1D

monochromatic

#0A1F37 #143C6A #1D599E #2676D2 #5696E0

Accessibility & contrast

On white

7.06

#1D599E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#1D599E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D599E

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D599E	#FFFFFF	#000000	##FFFFFF
##1D599E	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365FA1

Deuteranopia (green-blind)

#1D539D

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1d599e;
/* rgb */ color: rgb(29, 89, 158);
/* oklch */ color: oklch(46.4% 0.127 254.7);

Tailwind

colors: {
  custom: {
    50: '#6f87bb',
    500: '#1d599e',
    950: '#000000',
  },
}

SCSS

$custom: #1d599e;
$custom-light: #6f87bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d599e",
  "rgb": {
    "r": 29,
    "g": 89,
    "b": 158
  },
  "hsl": {
    "h": 212.093,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46384,
    "c": 0.1273,
    "h": 254.7
  },
  "luminance": 0.09875
}

Semantic roles & 50–950 ramp

primary

#1D599E

secondary

#C38F54

accent

#9A3CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D599E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →